公开(公告)号：EP0937973A2

公开(公告)日：1999-08-25

申请号：EP99103133.7

申请日：1999-02-17

Applicant: ANRITSU CORPORATION ,  Nippon Telegraph and Telephone Corporation

Inventor： Otani, Akihito ,  Otsubo, Toshinobu ,  Takara, Hidehiko c/o Nippon Telegr. & Tele. Corp. ,  Kawanishi, Satoki c/o Nippon Telegr. & Tele. Corp. ,  Yamabayashi, Yoshiaki c/o Nippon Telegr.& Tel.Cor.

IPC: G01J9/02

CPC classification number: G01M11/336 ,  G01J4/00 ,  G01J7/00 ,  G01J2009/0261 ,  G01M11/332 ,  G01M11/335

Abstract: A first tunable wavelength pulse light source (22) is driven by a reference signal to emit a first optical pulse. An optical demultiplexer (24) demultiplexes a first optical pulse emitted from the first pulse light source (22) into a reference optical pulse and an incident optical pulse to be sent into an object to be measured. An optical multiplexer (26) multiplexes the reference optical pulse and an outgoing optical pulse passing through the object to output multiplexed light. A second pulse light source (23) generates a second optical pulse which is synchronous with the first optical pulse and delays a predetermined time for each period of the first optical pulse. A sampling unit (27, 27a, 27b) receives the multiplexed light and the second optical pulse to obtain an optical pulse train signal proportional to the intensity of the multiplexed light obtained in synchronism with the second optical pulse. From the optical pulse train signal from the sampling unit (27, 27a, 27b), a signal processor (37) obtains an envelope formed by peaks of individual optical pulses forming the optical pulse train. The wavelength dispersion of the object is obtained by measuring the delay time of the outgoing optical pulse passing through the object on the basis of intervals between the peaks of the envelope.

公开(公告)号：EP0903609A1

公开(公告)日：1999-03-24

申请号：EP98402337.4

申请日：1998-09-23

Applicant: THOMSON-CSF

Inventor： Collot, Laurent ,  Kerboull-Leclerc, Frédérique ,  Larive, Marc

IPC: G02B27/28 ,  G02B23/12 ,  G01J4/00

CPC classification number: G02B27/28 ,  G01B11/24 ,  G01J4/00 ,  G02B23/12

Abstract: Le procédé de l'invention consiste à effectuer, pour chaque pixel à traiter d'une image thermique d'un objet, trois mesures différentes, par exemple à l'aide d'un polariseur à trois orientations différentes, à en déduire les paramètres de Stockes de l'onde issue de l'objet correspondant au pixel considéré, à calculer les paramètres polarimétriques d'ellipticité et d'inclinaison du grand axe de l'ellipse de l'onde partiellement polarisée, et à reconstruire la surface tridimensionnelle visible de l'objet en déterminant pour chacun de ces pixels ses coordonnées grâce aux relations existant entre les paramètres polarimétriques de l'onde et l'indice optique du matériau constituant l'objet, et le vecteur normal à la surface de l'objet à l'emplacement du pixel.

Abstract translation: 从强度的参数产生的法线向量从每个像素表征椭圆部分偏振波的感确定性使用数学​​和拓扑标准开采。 从到达寻求通过建立连续表面元件的本体（C1）内产生的声子的光束（FI）处界面（P1）与空气建立的对象的原点表面。 的部分偏振光束（FR）被反射回所述主体和另一部分偏振光束（Fe）的出现到空气中。 偏振的出射光束的程度取决于主体的性质，特别是它的介电常数。 具有相等的发光强度机构因此可被区分。 该方法仅使用三种类型的用于由使用具有相对于接收波束三个不同的特性的光学元件的而获得的每个像素观察光学数据。 然后三个斯托克斯参数计算哪一个使强度椭圆描述从每个像素发出的部分偏振光是确定性的开采的详细信息。 已知感伪法线向量的字段然后可构建允许的对象的从小元件建立起来的形状。

公开(公告)号：EP0737856A3

公开(公告)日：1999-03-10

申请号：EP96301670.4

申请日：1996-03-12

Applicant: J.A. WOOLLAM CO. INC.

Inventor： Green, Steven E. ,  Woollam, John A. ,  Herzinger, Craig M. ,  Ducharme, Stephen P. ,  Johs, Blaine D.

IPC: G01N21/21 ,  G01J3/447

CPC classification number: G01J4/00 ,  G01J3/447 ,  G01N21/211

Abstract: A system and method for controlling polarisation state determining parameters of a polarised beam of light in an ellipsometer or polarimeter and the like system, so that they are in ranges wherein the sensitivity, of a sample system characterising PSI and DELTA value monitoring detector (DET) used to measure changes in said polarisation state resulting from interaction with a "composite sample system," comprised of a sample system per se. (SS) and a beam polarisation state determining variable retarder, to noise and measurement errors etc. therein), is reduced. This allows determining sample system per se.
characterising PSI and DELTA values, from Composite Sample System characterising PSI and DELTA values, by compensating for the presence of components, (VR1) and/or (VR2), added to an ellipsometer or polarimeter and the like system. The arrangement also improves the ability of an ellipsometer or polarimeter and the like system fitted with components (VR1) and/or (VR2) to provide usably accurate and precise sample system characterising PSI and DELTA determining data values, wherein a sample system per se. investigating polarised beam of light is oriented at other than a Principal or Brewster Angle of Incidence thereto, the use of which Angle of Incidence would otherwise be difficult, if not impossible. The arrangement also allows determination of the "Handedness" of a polarised beam of light, and of sample system Jones or Mueller Matrix component values; and provides means for making system components (VR1) and/or (VR2) added to an ellipsometer or polarimeter and the like system, essentially end user transparent when desired, without removal thereof from said ellipsometer or polarimeter and the like system.

Abstract translation: 用于控制椭偏仪或偏振计等偏振光束的偏振态确定参数的系统和方法，使得它们处于表征PSI和DELTA值监视检测器（DET）的样本系统的灵敏度的范围内， 用于测量由与样品系统本身组成的“复合样品系统”的相互作用产生的所述极化状态的变化。 （SS）和光束偏振状态确定可变延迟器，其中的噪声和测量误差等）降低。 这允许确定样品系统本身。 通过补偿添加到椭偏仪或偏振计等的组件（VR1）和/或（VR2）的存在来表征PSI和DELTA值的复合样品系统的PSI和DELTA值的表征。 该装置还提高了配有组件（VR1）和/或（VR2）的椭偏仪或偏振计等的系统能够提供表征PSI和DELTA确定数据值的可用的精确和精确的采样系统的能力，其中采样系统本身。 调查偏振光束的方向是除了Principal或Brewster入射角之外，否则使用哪个角度的发生角度将是困难的，甚至是不可能的。 该布置还允许确定偏振光束和样本系统Jones或Mueller Matrix分量值的“Handedness”; 并且提供用于将系统组件（VR1）和/或（VR2）添加到椭偏仪或偏振计等的系统，基本上终端用户在需要时是透明的，而不从所述椭偏仪或偏振计等偏移仪中去除。

公开(公告)号：EP0791170A1

公开(公告)日：1997-08-27

申请号：EP95939147.0

申请日：1995-11-09

Applicant: WOLFF, Lawrence B.

Inventor： WOLFF, Lawrence B.

IPC: G01J4

CPC classification number: G01J4/00

Abstract: An apparatus (10) comprises an optical filter (12), which resolves electromagnetic radiation into a sequence of resolved polarization components, an imaging device (14), having a storage device (16), and a driver (18). The imaging device (14) receives the sequence of resolved polarization components from the optical filter (12) and stores them in the storage device (16). The driver (18), which receives the video synchronization signal, produces a filter synchronization signal which is provided to the optical filter (12) to cause the optical filter (12) to produce the sequence of resolved polarization components so the optical filter (12) is in synchronization with the imaging device (14). This apparatus (10) is used to view the polarization properties of a scene.

公开(公告)号：EP0553460B1

公开(公告)日：1996-11-06

申请号：EP92121214.8

申请日：1992-12-12

Applicant: HEWLETT-PACKARD COMPANY

Inventor： Heffner, Brian L.

IPC: G01M11/00 ,  G01J4/00

CPC classification number: G01M11/334 ,  G01J4/00 ,  G01M11/336 ,  H04B10/2569

公开(公告)号：EP0729687A1

公开(公告)日：1996-09-04

申请号：EP94901207.0

申请日：1993-10-26

Applicant: WOLFF, Lawrence B.

Inventor： WOLFF, Lawrence B.

IPC: G02B23 ,  G01J4 ,  G02F1 ,  H04N5

CPC classification number: H04N5/2254 ,  G01J4/00

Abstract: A polarization viewer comprising a mechanism (12, 18, 20) for forming a broadview image having a spectral width greater than 2 angstroms and 50° based on polarization information of a scene. The polarization viewer is also comprised of a mechanism (12, 18, 20) for providing polarization information to the forming mechanism. The providing mechanism is in communication with the forming mechanism. In a first embodiment, the providing mechanism includes a camera mechanism in communication with the forming mechanism. The camera mechanism includes a fixed polarizer analyzer (12) disposed such that electromagnetic radiation entering the camera mechanism passes through the polarizer analyzer (12). The providing mechanism can also include a mechanism for steering a polarization plane of the radiation. The steering mechanism is disposed such that radiation passing through the polarizer analyser first passes through the steering mechanism. The steering mechanism preferably includes a first twist crystal (18) and at least a second twist crystal (20) aligned with the first twist crystal such that radiation passing through the first crystal has a first state and a second state.

公开(公告)号：EP0322714A2

公开(公告)日：1989-07-05

申请号：EP88121304.5

申请日：1988-12-20

Applicant: Kuraray Co., Ltd.

Inventor： Kawatsuki, Nobuhiro ,  Uetsuki, Masao

IPC: G02B5/30 ,  G02B5/18 ,  G02B27/44 ,  G11B7/13 ,  G11B7/135 ,  G11B11/10 ,  G01J4/04 ,  G01N21/21

CPC classification number: G11B7/1353 ,  G01J4/00 ,  G02B27/283 ,  G11B11/10543

Abstract: A polarizing optical element (7) which comprises a first substrate (7a) having a first surface formed with first and second gratings (7c, 7d) so as to cross relative to each other at a predetermined crossing angle (T), each of which first and second gratings (7c, 7d) has a grating pitch (Λ) equal to or smaller than the wavelength of a laser beam which may be incident upon the polarizing optical element (7). A magneto-optical head system of a type comprising a laser source for emitting and projecting a laser beam on a magneto-optical recording medium and utilizing a magneto-optical effect for reading information, recorded on the magneto-optical recording medium, by the utilization of reflected or transmitted laser beams reflected from or transmitted through the magneto-optical recording medium and utilizing the polarized optical element (7) is also disclosed.

Abstract translation: 一种偏振光学元件（7），包括第一基板（7a），第一基板形成有以第一和第二光栅（7c，7d）形成的第一表面，以便以预定的交叉角度（T）相对于彼此交叉， 第一和第二光栅（7c，7d）具有等于或小于可能入射到偏振光学元件（7）上的激光束的波长的光栅间距（LAMBDA）。 一种磁光头系统，其类型包括用于在磁光记录介质上发射和投射激光束并利用磁光效应来读取记录在磁光记录介质上的信息的激光源，通过利用 反射或透射通过磁光记录介质并利用偏振光学元件（7）的反射或透射的激光束也被公开。

公开(公告)号：EP0172568A3

公开(公告)日：1987-09-02

申请号：EP85110477

申请日：1985-08-21

Applicant: CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.

Inventor： Calvani, Riccardo ,  Cisternino, Francesco ,  Caponi, Renato

IPC: G01J04/00 ,  G01J09/04

CPC classification number: G01J4/00 ,  G01J9/04

Abstract: The method and the device are based on interference techniques. Two quasi-monochromatic radiations (2a, 2b; 102a, 102b; 202a, 202b) with slightly different optical frequencies are generated. A radiation is converted into a 45° linearly-polarized radiation, while the other presents the polarization state imposed by a body under test (4, 204). In each radiation, horizontal and vertical polarization components are separated, and then recombined into two different beams (20a, 21a; 34, 35) comprising radiations at both frequencies, respectively polarized in the same plane. Beatings between the two components of each beam are originated and from the two electrical signals in the radio frequency range thus obtained the information is extracted on the relative phase and the amplitude of the two components of the radiation with polarization imposed by the body under test (4, 204).

公开(公告)号：WO2017088014A1

公开(公告)日：2017-06-01

申请号：PCT/AU2016/051143

申请日：2016-11-23

Applicant: NANYANG TECHNOLOGICAL UNIVERSITY ,  THE UNIVERSITY OF MELBOURNE

Inventor： LIN, Jiao ,  DU, Luping ,  KOU, Shan Shan

IPC: G01J4/00 ,  G02B5/00

CPC classification number: G01J4/00 ,  G02B5/008

Abstract: An apparatus including: a conductive body that supports propagating plasmons; and at least one structure that generates the propagating plasmons when illuminated by two-dimensionally (2D) elliptically polarized light (EPL), wherein the structure is formed to give opposite initial phases to the plasmons corresponding to opposite elliptical polarizations of the EPL.

Abstract translation: 一种设备，包括：支撑传播等离子体的导电体; 以及至少一个当被二维（2D）椭圆偏振光（EPL）照射时产生传播等离子体激元的结构，其中该结构被形成为给与EPL的相反椭圆偏振对应的等离子体激元相反的初始相位。 p>

公开(公告)号：WO2017062644A1

公开(公告)日：2017-04-13

申请号：PCT/US2016/055787

申请日：2016-10-06

Applicant: HINDS INSTRUMENTS, INC.

Inventor： WANG, Baoliang

IPC: G01J3/447 ,  G01J4/00 ,  G01N21/21 ,  G01N21/25 ,  G02F1/01

CPC classification number: G01J3/447 ,  G01J4/00 ,  G01N21/19 ,  G01N21/21 ,  G01N21/253

Abstract: Example embodiments of methods, apparatus, and systems for measuring polarimetric parameters using spectroscopy are disclosed herein. Particular embodiments concern circular dichroism (CD) spectrometers that use a vertically aligned beam. In such embodiments, the solution being analyzed may have a top surface that forms a convex or concave meniscus, creating a surface through which the measuring beam passes that may refract the beam in undesirable ways. Accordingly, particular embodiments of the disclosed technology include one or more meniscus-compensating (meniscus-effect-reducing) components or subsystems. These components and/or subsystems can be used alone or in combination with one another to reduce the undesirable refractive effects caused by the meniscus at the solution' s surface, thereby improving the resulting quality of the spectroscopy measurement and potentially improving the speed with which CD spectroscopy can be performed.

Abstract translation: 本文公开了使用光谱测量偏振参数的方法，装置和系统的示例实施例。 特定实施例涉及使用垂直排列的光束的圆二色性（CD）光谱仪。 在这样的实施例中，被分析的溶液可以具有形成凸或凹弯月面的顶表面，从而产生测量光束通过的表面，该表面可以以不期望的方式折射光束。 因此，所公开的技术的特定实施例包括一个或多个弯液面补偿（弯月面效应降低）部件或子系统。 这些部件和/或子系统可以单独使用或者彼此组合使用以减少由溶液表面上的弯液面引起的不期望的折射效应，从而改善光谱测量的最终质量并且潜在地提高CD的速度 可以进行光谱学。